One way to understand thousands of new words is to gain __________ good knowledge of basic word formation.
C
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—Howareyoutoday?—Oh,I__________asillasIdonowforalongtime.
Johnsaidhewouldpay__________secondvisittoChina__________nextmonth.
MrWhite________at8:30forthemeeting,buthedidn’tshowup.